微分方程<img src=https://huaweicloudobs.ahjxjy.cn/12225FB1DC37B2F2F1CB9F927DF3A25B.png title=(99YYCW[XI`6{1TSUD%DBL9.png alt=(99YYCW[XI`6{1TSUD%DBL9.png/>的通解<img src=https://huaweicloudobs.ahjxjy.cn/ED13234A1B91AA11BDCDE67E3DDBFBE9.png title=H{J]{KN}]5Q{SVAUQXA$7SG.png alt=H{J]{KN}]5Q{SVAUQXA$7SG.png/>为( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/C3B965C2336B8EAC06A6286A3C81BD21.png title=~~[MS9DZ)7O%Z9OL0J~2I7T.png alt=~~[MS9DZ)7O%Z9OL0J~2I7T.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/2378775CBFE769FCF1D4B4E57AE2434C.png title=N1(D]5I7Q(J4%%JO2P3{[`N.png alt=N1(D]5I7Q(J4%%JO2P3{[`N.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/2BCF30648B51450288CD3D731FD96352.png title=Y{CDVS4E)REOL[8`O(9F1XY.png alt=Y{CDVS4E)REOL[8`O(9F1XY.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/B445CDACE8238F3AA4710AB449E88CA1.png title=ZPHQ6AK$6_A403]}[[4S6EE.png alt=ZPHQ6AK$6_A403]}[[4S6EE.png/>